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Finding the Fourth Proportional to 87,282.48, 120,450.30 and 49,043.64

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Solution

The fourth proportional to 87,282.48, 120,450.30 and 49,043.64 is: 67,680.49

Step by Step Solution

  1. Step 1: Write the proportion equation
    87,282.48 : 120,450.30 = 49,043.64 : x
  2. Step 2: Convert to fraction form
    87,282.48/120,450.30 = 49,043.64/x
  3. Step 3: Cross multiply
    87,282.48x = 120,450.30 × 49,043.64
  4. Step 4: Simplify right side
    87,282.48x = 5,907,321,151.09
  5. Step 5: Solve for x
    x = 5,907,321,151.09/87,282.48
  6. Step 6: Final answer
    x = 67,680.49

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